- From: Tab Atkins Jr. via GitHub <sysbot+gh@w3.org>
- Date: Mon, 21 Nov 2016 21:05:48 +0000
- To: public-houdini-archive@w3.org
Yes, we've found that using custom properties to apply things to shadow DOM is a little clunky as soon as you want to respond to `:hover` or similar; you kinda have to create families of variables, like `--foo-button` and `--foo-button-hover` (and more, if you want `:focus`, etc). We've been looking into ways to make this work better, but it's difficult to do well without having some bad performance regressions. Putting selectors into `@apply`'d rules defeats much of the optimizations browsers use to tell when they need to recalculate style for an element (an expensive process), so we have to be really careful about how we introduce this. -- GitHub Notification of comment by tabatkins Please view or discuss this issue at https://github.com/w3c/css-houdini-drafts/issues/332#issuecomment-262066892 using your GitHub account
Received on Monday, 21 November 2016 21:06:22 UTC